View clinical trials related to Hypovolemia.
Filter by:To monitor the changes in central and peripheral monitors/waveforms during gradual hypovolemia induced by lower body negative pressure in healthy volunteers.
Study to assess the feasibility of an external ultrasound fixator (ProbeFix)
Intraoperative hemodynamic management is important, since even mild variations in circulatory volume can be extremely damaging for patients. Minimally invasive hemodynamic monitoring are not always available or cost-effective, therefore management of fluids is challenging for anesthesiologists. This study aims to assess if, after performance of a lung recruitment maneuver (LRM), standard parameter's variation differs between hypovolemic and normovolemic patients. Patients' volemic state will be assessed with the Vigileo system. Standard monitoring values (heart rate, invasive blood pressure and saturation) will be registered before and after LRMs. A fluid challenge will be performed and the above mentioned parameters will be recorded again, after a second LRM. The study is a prospective observational study.
Prevalence of biventricular function of the heart and preoperative level of venous return is not known in non-cardiac non-morbid obese population. The aim of the study is to assess the preoperative function of the heart and status of hypovolemia on the day of surgery.
The aim of the study is to investigate the safety of a 6% hydroxyethyl starch (HES) solution (Volulyte 6%) versus an electrolyte solution (Ionolyte) in trauma patients.
The aim of the study is to investigate the safety of a 6% HES (Hydroxyethyl Starch) solution (Volulyte 6%) versus an electrolyte solution (Ionolyte) in patients undergoing elective abdominal surgery.
Mechanical ventilation has been known to produce changes in the flow of blood through the major blood vessels in the body. These changes may go undetected, but with continuous arterial blood pressure measurements, changes in the arterial waveform can be visualized. Although we know that these arterial pressure variations occur during mechanical ventilation, little is known about the effects of various modes of mechanical ventilation on these changes. The most common modes of ventilation used in ICU are Volume control, Pressure control and Airway pressure release ventilation. Objective We have designed a prospective randomized pilot study to determine the effects of the commonly used ventilator modes on the arterial pressure.
Heart Rate Variability (HRV) analysis has been studied in the critically ill patients although it is affected by several uncontrolled variables in the clinical conditions. The aim of this trial is to measure the effects of mildly reduced central volume and cyclic variation of intrathoracic pressure on the variables frequently used to describe the HRV.
Robot assisted urological procedures are often long surgical cases that can potentially result in complicated postoperative hospital course. The amount of intravenous (IV) fluids administered to patients during these operations fluctuates based on the length of the case, surgical blood loss, hemodynamic monitors, and the discretion of the anesthesiologist. The goal of intraoperative fluid therapy is to maintain optimal tissue perfusion without causing fluid overload. We plan to use a goal directed fluid therapy protocol to optimize fluid status and analyze post-operative outcomes.
Fluid boluses are often administered with the aim of improving tissue perfusion in critically ill patients. It is unclear whether the temperature of the fluid has an impact on the hemodynamic response. The aim of this study is to describe the hemodynamic effects of a fluid bolus with two different temperatures.